Prime Checker Program in CMD

This program is to make a program that checks whether a number is prime or not

• Start Notepad or Notepad++ on your system
• Type this:

• @echo off

  :x

  set /p num=Enter number: 

  set /a n=%num%

  set /a s=1

  :a

  set /a s=%s%+1

  if %s% equ %n% goto c

  set /a a=%n% %% %s%

  if %a% equ 0 goto b

  goto a

  :b 

  echo Composite  

  goto x

  :c 

  echo Prime  

  goto x

• Save it as prime.cmd on desktop and double click the file to start it